Hydrangea flower are so universal that they can either decorate the entrance to the house and the green lawn, or beautifully frame the garden path.
There are about 70 species of hydrangeas, all of which are popular in the gardens.
Hydrangea flowerMacrophylla originates from Japan.
The shrub, which reaches a height of 5-7 ft (1.5-2 m), is rather compact with its vertical branches. The leaves are ovate. The inflorescences come in the form of a sphere, with a diameter up to 6 inches (15 cm) and in either a white, pink, or blue color. On the outside, the flowers are sterile. They are formed on the shoots from the previous year. Inside, there are inflorescences that are pollinated and produce seeds. Hydrangeas Macrophylla begins to bloom in July. The duration of the flowering is 2 months. Hydrangeas Macrophylla has hardy bushes. They can be grown in USDA zone 6.
Oakleaf Hydrangeas are really amazing because of their leaves which can be contrasted from other types of hydrangeas. They take the form of panicles, similar to oak leaves. Oakleaf hydrangeas flower panicles reach up to 1 ft (30 cm), consisting of small flowers with a diameter of up to 1.2 inches (3 cm). White flowers are either fertile or sterile. Oakleaf hydrangeas bloom in June. The duration of flowering lasts for 2 months. Gradually, by the end of flowering they will change color to red.
This is a fast-growing shrub or a small tree up to 33 ft 4 inches (10 m) tall. It is decorative with its pyramidal white-creamy inflorescences that bloom from mid-June to late autumn. Hydrangea Paniculata’s flowering begins at 4 years of age.
This is a decorative vine that can reach 83 ft 4 inches (25 m). There are air shoots, which help to attach it to the support. The leaves are large and can grow up to 4 inches (10 cm) long. This vine is a frost-tolerant plant.
This is a beautiful decorative shrub up to 5 ft (1.5 m). Its flowers are framed into large spherical inflorescences. Hydrangea blooms in the early summer and blooms until mid-summer. It can withstand the cold climates of USDA zones 4-9. Hydrangeas amaze spectators with their beauty in group plantings. Their huge inflorescences, which sometimes reach 1 ft (30 cm), stand out against dark green foliage.
How to Select a Location for Panting Hydrangeas
Many types of hydrangeas prefer full sunlight in cooler climates. If the summer is hot in a certain climate zone, it is better to plant the hydrangea in a light shade, or wherever the sun shines in the morning.
Soil for Hydrangea Flower
Hydrangea flower prefer fertile moist soil. To do this, mix compost, leaf soil with peat and sand, in a proportion of 1:1:1:1. The soil for hydrangeas must be acidic, and the acidity should be not more than pH 5. In alkaline soils, the leaves gradually turn yellow, and the plant becomes sick with chlorosis. To prevent this, hydrangeas are fertilized with alum or iron salts once every 2 weeks. In acid soils, the flowers of tree hydrangeas turn blue or a deep blue.
Hydrangeas are planted in the spring or the fall. The pit should be at least 2 ft (60 cm) wide and deep. The root system of the hydrangeas is located on the surface. Planting should be done so that the crown is at the ground level. The roots of hydrangeas are covered in layers, then neatly compacted and watered.
Caring for Hydrangeas
Hydrangeas must be watered regularly. The soil is loosened after watering and mulched around. In autumn, the bush is hilled to a height of 1 ft (30 cm).
Young hydrangeas are not cut in the first 3-4 years.
Paniculate and tree hydrangeas are pruned every spring, as the inflorescences are formed on the branches of current year. After hydrangeas are pruned, they are fed with the help of a complex fertilizer for the better development of the bush and heavy flowering.
Lianoid and garden hydrangeas are not pruned. The flowers of these hydrangeas are formed on the plants of last year. Therefore, pruning is done immediately after the flowering, that is, until the beginning of August.
A Piece of Advice
Oakleaf hydrangeas are planted in drained soil. They do not tolerate stagnant moisture.
Each spring, hydrangeas should be composted either with ammonium sulfate or potassium sulfate. These fertilizers increase the soil acidity.
In summer and fall, superphosphate is used. This allows for strong and sturdy growing hydrangeas, which will heavily bloom throughout the season.
Read also: Which peonies should you grow in the garden?